U.S. orders 100 million COVID tests, White House says more needed The United States will boost its stockpile of at-home COVID-19 tests, ordering more than 100 million tests from domestic manufacturers, the White House said on Thursday, but warned it was a short-term solution. Ahmed Aboulenein Reuters

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What Scientists Have Learnt from COVID Lockdowns

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Scientists have been studying the effects of lockdowns during the pandemic in the hope that their findings could inform the response to future crises. They have reached some conclusions: countries that acted quickly to bring in stringent measures did best at preserving both lives and their economies, for instance.

China and India approve nasal COVID vaccines — are they a game changer? Nature - Scientists hope the immunizations, delivered through the nose or mouth, will prevent even mild cases of illness. Waltz, Emily nature

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These mucosal vaccines target thin mucous membranes that line the nose, mouth and lungs. By prompting immune responses where SARS-CoV-2 first enters the body, mucosal vaccines could, in theory, prevent even mild cases of illness and block transmission to other people — something COVID-19 shots have been unable to do. Vaccines that produce sterilizing immunity would be game changing for the pandemic. ...